3-Phenyl-4-(p-tolyl)-1H-1,2,4-triazol-5(4H)-one CAS 731-43-1

Purity 97%+In StockPharmaceutical Standards
CAS No.731-43-1
Molecular FormulaC15H13N3O
Molecular Weight251.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Phenyl-4-(p-tolyl)-1H-1,2,4-triazol-5(4H)-one CAS 731-43-1 chemical structure

Description

3-Phenyl-4-(p-tolyl)-1H-1,2,4-triazol-5(4H)-one (CAS 731-43-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H13N3O. Molecular weight: 251.28 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC15H13N3O
Molecular Weight251.28 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms3

Recommended Standards

Why CATO?